Efficient implementation of arbitrary quantum state engineering in four-state system by counterdiabatic driving

• Published in: Laser physics letters 2018-07, Vol.15 (7), p.75201
• Main Authors: Wang, Song-Bai, Chen, Ye-Hong, Wu, Qi-Cheng, Shi, Zhi-Cheng, Huang, Bi-Hua, Song, Jie, Xia, Yan
• Format: Article
• Language: English
• Subjects: counterdiabatic driving; four-state system; quantum state engineering
• ISSN: 1612-2011; 1612-202X
• DOI: 10.1088/1612-202X/aabf19

A scheme is proposed to implement quantum state engineering (QSE) in a four-state system via counterdiabatic driving. In the scheme, single- and multi-mode driving methods are used respectively to drive the system to a target state at a predefined time. It is found that a fast QSE can be realized by utilizing simply designed pulses. In addition, a beneficial discussion on the energy consumption between the single- and multi-mode driving protocols shows that the multi-mode driving method seems to have a wider range of applications than the single-mode driving method with respect to different parameters. Finally, the scheme is also helpful for implementing the generalization QSE in high-dimensional systems via the concept of a dressed state. Therefore, the scheme can be implemented with the present experimental technology, which is useful in quantum information processing.